919275798874 has 4 divisors (see below), whose sum is σ = 1378913698314. Its totient is φ = 459637899436.

The previous prime is 919275798871. The next prime is 919275798911. The reversal of 919275798874 is 478897572919.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 677008068025 + 242267730849 = 822805^2 + 492207^2 .

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 919275798874.

It is not an unprimeable number, because it can be changed into a prime (919275798871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229818949717 + ... + 229818949720.

Almost surely, 2^919275798874 is an apocalyptic number.

919275798874 is a deficient number, since it is larger than the sum of its proper divisors (459637899440).

919275798874 is a wasteful number, since it uses less digits than its factorization.

919275798874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459637899439.

The product of its digits is 640120320, while the sum is 76.

The spelling of 919275798874 in words is "nine hundred nineteen billion, two hundred seventy-five million, seven hundred ninety-eight thousand, eight hundred seventy-four".